So far, so good! We found a live bug inside the bag but he couldn't escape so he met an untimely death! We're THRILLED to be through with bed bugs as this was our 6th episode with bed bugs! Be very, very careful when making a purchase as new items can have bugs as easily as used. They are easy to smell as well as ascertain evidence by blood smears which is one area where I found a problem - after the fact, of course. I pray these as well as all the spraying, treating, as well as isolating items that are most likely to house bugs, we have done will aid us in ridding ourselves of the bugs. They are horrible! At least this way, we won't lose some of the most expensive items we own...our beds! In the past, we've thrown away bed after bed and had only recently spent a fortune replaceing our beds. As such, it was well worth this purchase to save them. Thus far, we are beyond pleased!